Phosphine-catalyzed bishydrophosphorylation of electron-deficient alkynes
作者:Alexey V. Salin、Anton V. Il'in、Rustem I. Faskhutdinov、Robert R. Fayzullin
DOI:10.1016/j.tet.2019.03.042
日期:2019.5
Tertiaryphosphines (n-Bu3P, Ph3P) efficiently catalyze the vicinal bis-addition of dialkyl phosphites and diaryl phosphine oxides to alkynoates though the tandem α-umpolung/β-Michael addition. This reaction offers a simple metal-free method for gram-scale preparation of practically useful bisphosphonates and bisphosphine oxides under mild conditions with high atom economy and selectivity.